<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"
    />
    <meta name="description" content="Control fog parameters." />
    <meta name="cesium-sandcastle-labels" content="Development" />
    <title>Cesium Demo</title>
    <script type="text/javascript" src="../Sandcastle-header.js"></script>
    <script
      type="text/javascript"
      src="../../../Build/CesiumUnminified/Cesium.js"
      nomodule
    ></script>
    <script type="module" src="../load-cesium-es6.js"></script>
  </head>
  <body
    class="sandcastle-loading"
    data-sandcastle-bucket="bucket-requirejs.html"
  >
    <style>
      @import url(../templates/bucket.css);
    </style>
    <div id="cesiumContainer" class="fullSize"></div>
    <div id="loadingOverlay"><h1>Loading...</h1></div>
    <div id="toolbar">
      <table>
        <tbody>
          <tr>
            <td>enabled</td>
            <td><input type="checkbox" data-bind="checked: enabled" /></td>
          </tr>
          <tr>
            <td>density</td>
            <td><input type="text" size="5" data-bind="value: density" /></td>
          </tr>
          <tr>
            <td>sse increase factor</td>
            <td><input type="text" size="5" data-bind="value: sse" /></td>
          </tr>
        </tbody>
      </table>
      <div id="zoomButtons"></div>
    </div>
    <script id="cesium_sandcastle_script">
      function startup(Cesium) {
        "use strict";
        //Sandcastle_Begin
        var viewer = new Cesium.Viewer("cesiumContainer", {
          terrainProvider: Cesium.createWorldTerrain(),
        });

        viewer.extend(Cesium.viewerCesiumInspectorMixin);

        //The viewModel tracks the state of our mini application.
        var viewModel = {
          enabled: true,
          density: 0,
          sse: 0,
        };
        // Convert the viewModel members into knockout observables.
        Cesium.knockout.track(viewModel);

        // Bind the viewModel to the DOM elements of the UI that call for it.
        var toolbar = document.getElementById("toolbar");
        Cesium.knockout.applyBindings(viewModel, toolbar);

        Cesium.knockout
          .getObservable(viewModel, "enabled")
          .subscribe(function (newValue) {
            viewer.scene.fog.enabled = newValue;
          });

        Cesium.knockout
          .getObservable(viewModel, "density")
          .subscribe(function (newValue) {
            viewer.scene.fog.density = newValue;
          });

        Cesium.knockout
          .getObservable(viewModel, "sse")
          .subscribe(function (newValue) {
            viewer.scene.fog.screenSpaceErrorFactor = newValue;
          });

        viewModel.enabled = viewer.scene.fog.enabled;
        viewModel.density = viewer.scene.fog.density;
        viewModel.sse = viewer.scene.fog.screenSpaceErrorFactor;

        Sandcastle.addToolbarButton("Horizon high altitude", function () {
          viewer.camera.setView({
            destination: new Cesium.Cartesian3(
              -2467730.5740817646,
              -4390507.315824514,
              3906155.113316938
            ),
            orientation: {
              heading: 4.492211521856625,
              pitch: -0.2687139437696304,
            },
          });
        });

        Sandcastle.addToolbarButton("Horizon low altitude", function () {
          viewer.camera.setView({
            destination: new Cesium.Cartesian3(
              -734001.9511656855,
              -4214090.596769834,
              4715898.125886317
            ),
            orientation: {
              heading: 5.634257362559497,
              pitch: -0.019548505785381032,
            },
          });
        });

        viewer.scene.globe._surface._debug.enableDebugOutput = true;

        Sandcastle.addToolbarButton("Snap", function () {
          var container = document.getElementById("cesiumContainer");
          var tmpH = container.style.height;
          var tmpW = container.style.width;

          container.style.height = "600px";
          container.style.width = "800px";

          viewer.resize();
          viewer.render();
          window.open(viewer.canvas.toDataURL("image/png"));
          container.style.height = tmpH;
          container.style.width = tmpW;
          viewer.resize();
          viewer.render();
        });

        //Sandcastle_End
        Sandcastle.finishedLoading();
      }
      if (typeof Cesium !== "undefined") {
        window.startupCalled = true;
        startup(Cesium);
      }
    </script>
  </body>
</html>
